plural dot matrices or dot matrixes
: a pattern of dots that form letters, numbers, etc., on a computer screen or on something printed from a computer
—often used before another noun
Dot matrix printers have been largely replaced with laser printers.
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“Dot matrix.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/dot%20matrix. Accessed 22 Jun. 2026.
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